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6th January 2016
Page 1 of 9
SIP Trunk Compatibility Report
NEC is pleased to verify that:
BT Wholesale – WSIPT & One Voice Services
SV8100
NEC Enterprise Solutions has performed Interoperability Testing with the Switch(es)
and Provider/Service listed above on the date specified.
Please always refer to the appropriate SIP Trunk Compatibility Report Index and the
latest edition of a specific Compatibility Report on BusinessNet before considering
connection.
If a Provider is no longer mentioned in the Index then the Compatibility Report has
been withdrawn and connection will no longer be supported by NEC Enterprise
Solutions.
Test Completion Date: 04/03/2015
Test Location: NEC UK
Name of Provider: BT Wholesale
Website: www.btwholesale.com
System Tested: SV8100
Software Version: C9.50
SIP Connection Mode: Networking Mode
Test Plan Version:
Version:
BT CPE Test Plan
5.2
Please refer to the following page(s) for further
Information and Configuration Notes.
6th January 2016
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SIP Configuration Notes – BT Wholesale - WSIPT & One Voice Services Use the specific configuration guide below as an example to configure an SV8100 or SL11100/SL1000
PBX for connection to the service described above via SIP trunks.
Supported Minimum Software Versions
SV8100:
CCPU V9.50
System Programming
The following items should be changed – all other items are considered irrelevant and as such left as
default. Screenshots are for example purposes only and will have been taken from the PBX under test
but will apply to the other PBXs listed on the cover of the Compatibility Report.
Any differences in programming will be documented where necessary.
Easy Edit PRG Item Setting
Advanced
Items > IP/SIP >
Blades > CCPU
IP Address
10-12-09 IPLA/VOIPDB IP
Address
Set according to customers network
requirements
10-12-10 IPLA/VOIPDB
Subnet Mask
Set according to customers network
requirements
10-12-03 Default
Gateway
Set according to customers network
requirements
10-12-02 Default
Gateway Subnet
Mask
Set according to customers network
requirements
10-12-01 IP Address Must be in a different network range to IPLA IP
Address (10-12-09)
6th January 2016
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Easy Edit PRG Item Setting
Advanced
Items > IP/SIP >
Blades >VoIP
Resource IP
Address
84-26-01 VoIP Gateway IP
Address
Set according to customers network
requirements and IPLA channel capacity
32 Channel = 2 x VoIP Gateway IP addresses
64 Channel = 4 x VoIP Gateway IP addresses
128 Channel = 8 x VoIP Gateway IP addresses
Note: IPLB Card only requires 1 VoIP Gateway IP
Address that applies to IPLB32/64/128.
Easy Edit PRG Item Setting
Advanced
Items > IP/SIP >
SIP Trunks > SIP
Trunk
Assignment
10-40-01 IP Trunk
Availability
Set to Enabled
10-40-02 IP trunk Port
Count
Set to number of SIP trunks required. Associated
IP Trunk Licenses must be installed on PBX.
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Easy Edit PRG Item Setting
Advanced
Items > IP/SIP >
SIP Trunks >
VoIP Trunk
Type
10-03-02 Trunk Type Set VOIPU card trunk ports to SIP
6th January 2016
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Easy Edit PRG Item Setting
Advanced
Items > IP/SIP
> Blades >
Networking
Mode >
Networking
Mode
10-23-01 System
Interconnection
Set to Enabled
10-23-02 IP Address Set to SIP server IP Address supplied by BT
10-23-04 Dial Number The first digit(s) that will be dialled
10-23-05 Keep Alive Mode
for SIP
Enable for Proxy Fall Back if the Primary SIP
Server IP Address Fails. This is not supported
on the SV8100.
10-28-01 Domain Name Set according to customers network
requirements or leave blank if not required
10-28-02 Host Name Set according to customers network
requirements or leave blank if not required
10-28-04 User ID Enter the account number supplied by BT
10-29-14 Carrier Choice Carrier Choice set as Carrier B
10-29-16 Register Sub Mode Set to Disabled
84-13-28 Audio Capability Set codec according to customer requirements
G711 or G729
84-13-31 DTMF Payload 101
84-13-07 Session Timer
Value
Set to 900 seconds as required by BT
84-13-08 Minimum Session
Timer Value
Set to 600 seconds as required by BT
84-13-32 DTMF Relay Mode Set to RFC2833
84-14-13 Incoming/Outgoing
SIP Trunk for E.164 Set to Mode 2 to support e.164 number format
84-14-16
SIP Trunk SIP-URI
E.164 Incoming
Mode
Set to Mode 2 to support e.164 number format
See wizard page continuation on page 6
6th January 2016
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BT Wholesale require that the caller ID presentation to be converted as e.164 format +44 for
example. Please configure as below to meet the requirements as addition to the settings above for
commands 84-14-13 & 84-14-16.
Advanced Edit PRG Item Setting
Trunks>Location Set
Up
10-02-01 Country
Code
BT Wholesale uses international CID format so
you need to enter the country code as 44 for
UK
10-02-02 International
Access Code
Enter as 00
10-02-03 Caller ID Edit
Mode
Enter 0 if required
10-02-05 CID Edit TAC Enter the digit used for Trunk Access –
Normally 9 or 0
Continues next page
6th January 2016
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Also configure LCR to convert the dialed digits to add 0044 infront of the number so the customer can
still dial using the national format when dialing. LCR also converts numbers dialed from the Speed Dial
tables & Caller History from key sets. Please set LCR as per the table below and enable Trunks
required.
Advanced Edit PRG Item Setting
Advanced Items >
LCR>LCR Dial Data
14-01-23 Least Cost
Routing
Enable each required Trunk (SIP Trunk
only)
26-02-01 Dial Data Enter digits to be modified. See table
below and add further digits as required.
26-02-06 Carrier Table Enter the required Carrier Table for the
modification for each dialled digit.
26-05-01 LCR Delete Digits Enter the amount of digits required for
deletion per carrier table. See table below
26-05-02 Access Code Use this table to add digits per carrier
table. See table below.
See screen shot on next page
• DDIs can be configured if required, using the same procedure as for ISDN trunks but we don’t need
to match the digits received so carrier could send full number and we look at the last 6 digits as
command 22-09-01.
• SIP calls are sent “en bloc”. This means that the External Call Inter digit timer (PRG21-01-03) must
expire before the call is set up. This can be reduced, but will have an impact on ISDN trunks also.
The user can dial # to indicate “end of dialling” instead if required.
Network Configuration
If Public IP addresses are assigned to the SV8100 IPLA/IPLB and VoIP Gateways, then there should be
no network configuration required.
If there is one public IP address assigned and NAT is used, it is necessary to configure Port Forwarding
on the router:
• Port 5060 should be forwarded to the IPL IP address (10-12-09)
• Port 10020 – 10283 should be forwarded to the VoIP Gateway IP addresses (84-26-01)
• NAPT should be enabled in PRG10-12-06 and the Public IP address of the local ISP should be
entered into PRG10-12-07.
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Known Limitations/Comments
• SIP calls are sent “en bloc”. This means that the External Call Interdigit timer (PRG21-01-03)
must expire before the call is set up. This can be reduced, but will have an impact on ISDN
trunks also. The user can dial # to indicate “end of dialling” instead if required.
• BT SIP Accounts have a WEB portal where the SIP Settings can be amended as required. You
will need to change the Caller ID presentation to use the From Header instead of the P-
Asserted Identification field (default setting). This is required if the customer requires
flexible CLIP using command 21-17 (Trunk Level) or 21-19 (Extension Level) to send an
alternative CLI for outbound calls other than the base number. CLIP should be entered in
international format 00441923610000 for example.
• SIP Carrier B format in 10-29-14 must be used for the BT WSIPT service as this format does
not send the Privacy header that can override settings that can be applied using the BT web
portal for example withheld CLIP at network level. Note comment above.
• Command 20-25-02 to provide ring back tone for SIP to SIP calls.
• Fax over SIP Trunks has been tested using T.38 for both inbound and outbound. Please note that
we cannot always guarantee fax over IP as this can fail due to the Fax Machines used or
bandwidth / packet loss on the network. Command 15-03-03 must be set to special & 15-03-18
set to Fax for the SLT extensions used for Fax and Fax Relay Mode must be enabled in 84-13-50.
• Minimum and maximum session expiry timers need to be set as 600 for the minimum expiry
timer (84-14-08) & 900 for the maximum (84-14-07) as required by BT Wholesale.
• Call Forward Moved Temporally with T302 return not supported with BT. If Call defection via
SIP is required then Trunk to Trunk external forwarding will need to be configured.
• BT Wholesale provides a secondary SIP Server IP Address that can be used for back-up if their
primary connection fails also referred to as SIP Proxy Fallback. This feature is not currently
supported as the delay for fall-back is too long. We are looking into supporting this at a later
date when the fall-back timer is more flexible.
NEC Enterprise Solutions cannot be held responsible for any regulatory non-compliance resulting from
the use of this service.
Document History
Version Date Description
5.0 17/04/2015
Certification tests were completed using BT Wholesales SIP
Certification Plan. This report is now released for the SV8100.
5.1 28/04/2015 Added comment regarding SIP Proxy Fallback
5.2 06/01/2016
Updated certification regarding Carrier Format B to be used
instead of E so that the privacy header is not sent in the invite
for outgoing calls. Comments added that the BT SIP Account
will need to be updated to use the From Header instead of the
PAID header for outgoing CLIP requirements.
TO THE EXTENT NOT PROHIBITED BY LAW, IN NO EVENT SHALL NEC
ENTERPRISE SOLUTIONS BE LIABLE FOR PERSONAL INJURY OR ANY
INCIDENTAL, SPECIAL, DIRECT, INDIRECT OR CONSEQUENTIAL
DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION, DAMAGES
FOR LOSS OF PROFITS, LOSS OF DATA, BUSINESS INTERRUPTION OR ANY
OTHER COMMERCIAL DAMAGES OR LOSSES ARISING OUT OF OR
RELATED TO YOUR USE OF THIS REPORT, HOWEVER CAUSED
REGARDLESS OF THE THEORY OF LIABILITY (CONTRACT, TORT OR
OTHERWISE) AND EVEN IF NEC ENTERPRISE SOLUTIONS HAS BEEN
6th January 2016
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, DUE TO THE
POSSIBILTY OF PROVIDERS MAKING SYSTEM CHANGES WHICH PROCEED
THE COMPATIBILITY TESTING DETAILED IN THIS REPORT.
IN NO EVENT SHALL NEC ENTERPRISE SOLUTIONS TOTAL LIABILITY TO
YOU FOR ALL DAMAGES (OTHER THAN AS MAY BE REQUIRED BY
APPLICABLE LAW IN CASES INVOLVING PERSONAL INJURY) EXCEED THE
AMOUNT OF SEVENTY FIVE POUNDS (£75).
THE FOREGOING LIMITATIONS WILL APPLY EVEN IF THE ABOVE STATED
REMEDY FAILS OF ITS ESSENTIAL PURPOSE.
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